<Item type="DFMEA Item DFMEA Function" action="add" id="@2">
 <source_id>@1</source_id>
 <related_id>
  <Item type="DFMEA Function" action="add" id="@3">
   <fmea_function>@4</fmea_function>
   <Relationships>
    <Item type="DFMEA Function Characteristic" action="add" id="@5"/>  
   </Relationships>
  </Item>
 </related_id>
</Item>